How to send the secret of qq space?

1. Log in to qq first, enter Dynamic, and select "Friends Dynamic", as shown below:

2. Enter "Call"

3. Enter the writing interface, and the right side of the speech is "Secret":

4. Click to enter the BCC interface, and the page can be sent directly.

5. Enter the "View All Secrets" page, or you can view all secrets, as shown below:

6. The secret of Tencent Space can send any content to friends, but I don't know who sent it. I sent it myself, and the page also shows "friends", as shown below.